Morphine Indigestion Morphine works by blocking pain signals from travelling along the nerves to the brain. The most common side effects of morphine are constipation, feeling sick and sleepiness. Feb 7, 2017.

Metformin Causing Acid Reflux the diarrhea should fade with time. your body is just getting introduced to something new. most people actually get terrible gas from metformin. so that is something to look forward